Fundamental aspects of bubble–particle attachment mechanism in flotation separation
MetadataShow full item record
Analysis of bubble–particle mechanism is important for improving our understanding of flotation process. The research presented integrates microflotation experiments, bubble–particle attachment time measurements, and colloid and surface characterization and analysis. The bubble–particle attachment time was inversely related to the flotation recovery and the minimum attachment time matched the maximum flotation recovery, which occurred around mutual isoelectric point for the glass particles and air bubbles. Bubble–particle force measurements, performed with an Atomic Force Microscope (AFM), showed a similar trend. Additionally, the adsorption isotherm of the glass–dodecyl amine hydrochloride (DAH) system indicated that there are the three adsorption regions, and the flotation recovery reached its maximum value in the second region of DAH adsorption on the glass surface. All results obtained in this study showed the important role of colloidal forces affected by surfactant adsorption in bubble–particle attachment.
Showing items related by title, author, creator and subject.
The relationships between the bubble–particle attachment time, collector dosage and the mineralogy of a copper sulfide oreAlbijanic, Boris; Bradshaw, D.; Nguyen, A. (2012)Flotation occurs as a result of bubble–particle attachment. This is controlled by the particle surface properties which are created by surface liberation of valuable minerals and collector adsorption within the chemical ...
Albijanic, Boris; Nimal Subasinghe, G.; Bradshaw, D.; Nguyen, A. (2015)Flotation is controlled by the bubble–particle attachment mechanism which depends on the particle surface properties i.e., the particle composition, the surface liberation of valuable minerals and collector adsorption. ...
Attachment interactions between low-rank coal particles and air/oily bubbles in a microflotation cellZhou, Y.; Albijanic, Boris; Wang, S.; Li, G.; Zhu, X. (2019)The separation of particles by flotation is achieved based on the difference in their surface properties. The controlling step for successful flotation is bubble–particle attachment. The time required for attachment of a ...